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Mignani R, Americo C, Aucella F, Battaglia Y, Cianci V, Sapuppo A, Lanzillo C, Pennacchiotti F, Tartaglia L, Marchi G, Pieruzzi F. Reducing agalsidase beta infusion time in Fabry patients: low incidence of antibody formation and infusion-associated reactions in an Italian multicenter study. Orphanet J Rare Dis 2024; 19:38. [PMID: 38308295 PMCID: PMC10835838 DOI: 10.1186/s13023-024-03049-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/19/2024] [Indexed: 02/04/2024] Open
Abstract
BACKGROUND Fabry disease is a rare progressive X-linked lysosomal storage disease caused by mutations in the GLA gene that encodes α-galactosidase A. Agalsidase beta is a recombinant enzyme replacement therapy authorized in Europe at a standard dose of 1.0 mg/kg intravenously every other week at an initial infusion rate of ≤ 0.25 mg/min until patient tolerance is established, after which the infusion rate may be increased gradually. However, specific practical guidance regarding the progressive reduction in infusion time is lacking. This study investigated a new and specific protocol for reducing agalsidase beta infusion time in which a stable dosage of 15 mg/h is infused for the first four months, and the infusion rate is increased progressively from 15 to 35 mg/h for the subsequent four infusions. The shortest infusion time is reached after six months and maintained thereafter. The incidence of infusion-associated reactions (IARs) and the development of anti-drug antibodies were analyzed, and the disease burden and the clinical evolution of the disease at 12 months were evaluated. RESULTS Twenty-five of the 31 patients were naïve to enzyme or chaperone treatment at baseline and six patients had been switched from agalsidase alfa. The reduced infusion time protocol was well tolerated. Only one patient exhibited an IAR, with mild symptoms that resolved with low-dose steroids. Six patients globally seroconverted during treatment (4 with a classic phenotype and 2 with late-onset disease). All but three patients were seronegative at month 12. All patients were stable at the study's end (FAbry STabilization indEX value < 20%); reducing infusion time did not negatively impact clinical outcomes in any patient. The perceived medical assessment showed that the quality of life of all patients improved. CONCLUSIONS The study demonstrates that reducing agalsidase beta infusion time is possible and safe from both an immunogenic and clinical point of view. The use of a low infusion rate in the first months when the probability of onset of the development of antibodies is higher contributed to very limited seroconversion to antibody-positive status.
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Affiliation(s)
- Renzo Mignani
- Nephrology, Dialysis and Transplantation, IRCCS S. Orsola Hospital, University of Bologna, Bologna, Italy.
| | - Claudio Americo
- Nephrology and Dialysis Unit, Pierantoni Hospital, Forlì, Italy
| | - Filippo Aucella
- Nephrology Unit, Ospedale Casa Sollievo della Sofferenza, San Giovanni Rotondo, Foggia, Italy
| | - Yuri Battaglia
- Nephrology and Dialysis Unit, St. Anna University Hospital, Ferrara, Italy
| | - Vittoria Cianci
- Regional Epilepsy Centre, Great Metropolitan Hospital, Reggio Calabria, Italy
| | - Annamaria Sapuppo
- Pediatric Clinic, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | | | | | - Luciano Tartaglia
- Nephrology Dialysis and Transplantation Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Giacomo Marchi
- MetabERN Referral Center for Lysosomal Storage Disorders, Internal Medicine Unit, University of Verona, Verona, Italy
| | - Federico Pieruzzi
- Clinical Nephrology, School of Medicine and Surgery, University of Milano, Bicocca, Italy
- Nephrology and Dialysis Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
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Germain DP, Altarescu G, Barriales-Villa R, Mignani R, Pawlaczyk K, Pieruzzi F, Terryn W, Vujkovac B, Ortiz A. An expert consensus on practical clinical recommendations and guidance for patients with classic Fabry disease. Mol Genet Metab 2022; 137:49-61. [PMID: 35926321 DOI: 10.1016/j.ymgme.2022.07.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/21/2022] [Accepted: 07/21/2022] [Indexed: 11/28/2022]
Abstract
Fabry disease is an X-linked inherited lysosomal disorder that causes accumulation of glycosphingolipids in body fluids and tissues, leading to progressive organ damage and reduced life expectancy. It can affect both males and females and can be classified into classic or later-onset phenotypes. In classic Fabry disease, α-galactosidase A (α-Gal A) activity is absent or severely reduced and disease manifestations have an early onset that can affect multiple organs. In contrast, in later-onset Fabry disease, patients have residual α-Gal A activity and clinical features are primarily confined to the heart. Individualized therapeutic goals in Fabry disease are required due to varying phenotypes and patient characteristics, and the wide spectrum of disease severity. An international group of expert physicians convened to discuss and develop practical clinical recommendations for disease- and organ-specific therapeutic goals in Fabry disease, based on expert consensus and evidence identified through a structured literature review. Biomarkers reflecting involvement of various organs in adult patients with classic Fabry disease are discussed and consensus recommendations for disease- and organ-specific therapeutic goals are provided. These consensus recommendations should support the establishment of individualized approaches to the management of patients with classic Fabry disease by considering identification, diagnosis, and initiation of disease-specific therapies before significant organ involvement, as well as routine monitoring, to reduce morbidity, optimize patient care, and improve patient health-related quality of life.
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Affiliation(s)
- Dominique P Germain
- French Referral Center for Fabry disease and MetabERN European Reference Network for Inherited Metabolic Diseases, Division of Medical Genetics, University of Versailles, Paris-Saclay University, 2, allée de la source de la Bièvre, 78180 Montigny, France
| | - Gheona Altarescu
- Shaare Zedek Institute of Medical Genetics, Shaare Zedek Medical Center, Shmu'el Bait St 12, Jerusalem 9103102, Israel
| | - Roberto Barriales-Villa
- Unidad de Cardiopatías Familiares, Hospital Universitario da Coruña, (INIBIC/CIBERCV), As Xubias, 84, 15006 A Coruña, Spain
| | - Renzo Mignani
- Department of Nephrology, Infermi Hospital, Viale Luigi Settembrini, 2, 47923 Rimini, RN, Italy
| | - Krzysztof Pawlaczyk
- Department of Nephrology, Transplantology and Internal Medicine, Poznan University of Medical Sciences, Collegium Maius, Fredry 10, 61-701 Poznań, Poland
| | - Federico Pieruzzi
- Nephrology Clinic, School of Medicine and Surgery, University of Milano-Bicocca, Piazza dell'Ateneo Nuovo, 1, 20126 Milano, MI, Italy; Nephrology and Dialysis Department, ASST-Monza, San-Gerardo Hospital, Via Aliprandi, 23, 20900 Monza, MB, Italy
| | - Wim Terryn
- General Internal Medicine and Nephrology, Jan Yperman Hospital, Briekestraat 12, 8900 Ypres, Belgium
| | - Bojan Vujkovac
- Fabry Center, Slovenj Gradec General Hospital, Gosposvetska cesta 3, 2380 Slovenj Gradec, Slovenia
| | - Alberto Ortiz
- Jiménez Díaz Foundation University Hospital, Avda. Reyes Católicos, 2, 28040 Madrid, Spain; Department of Medicine, Universidad Autonoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain.
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Silva CAB, Andrade LGMD, Vaisbich MH, Barreto FDC. Brazilian consensus recommendations for the diagnosis, screening, and treatment of individuals with fabry disease: Committee for Rare Diseases - Brazilian Society of Nephrology/2021. J Bras Nefrol 2022; 44:249-267. [PMID: 35212703 PMCID: PMC9269181 DOI: 10.1590/2175-8239-jbn-2021-0208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/16/2021] [Indexed: 11/21/2022] Open
Abstract
Fabry disease (FD) is an X-linked inherited disorder caused by mutations in the GLA gene encoding enzyme alpha-galactosidase A (α-Gal A). The purpose of this study was to produce a consensus statement to standardize the recommendations concerning kidney involvement in FD and provide advice on the diagnosis, screening, and treatment of adult and pediatric patients. This consensus document was organized from an initiative led by the Committee for Rare Diseases (Comdora) of the Brazilian Society of Nephrology (SBN). The review considered randomized clinical trials, real-world data studies, and the expertise of its authors. The purpose of this consensus statement is to help manage patient and physician expectations concerning the outcomes of treatment. Our recommendations must be interpreted within the context of available evidence. The decisions pertaining to each individual case must be made with the involvement of patients and their families and take into account not only the potential cost of treatment, but also concurrent conditions and personal preferences. The Comdora intends to update these recommendations regularly so as to reflect recent literature evidence, real-world data, and appreciate the professional experience of those involved. This consensus document establishes clear criteria for the diagnosis of FD and for when to start or stop specific therapies or adjuvant measures, to thus advise the medical community and standardize clinical practice.
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Lenders M, Brand E. Mechanisms of Neutralizing Anti-drug Antibody Formation and Clinical Relevance on Therapeutic Efficacy of Enzyme Replacement Therapies in Fabry Disease. Drugs 2021; 81:1969-1981. [PMID: 34748189 PMCID: PMC8602155 DOI: 10.1007/s40265-021-01621-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2021] [Indexed: 12/13/2022]
Abstract
Fabry disease (FD) is a rare X-linked lysosomal storage disorder caused by mutations in the α-galactosidase A (AGAL/GLA) gene. The lysosomal accumulation of the substrates globotriaosylceramide (Gb3) and globotriaosylsphingosine (lyso-Gb3) results in progressive renal failure, cardiomyopathy associated with cardiac arrhythmia, and recurrent strokes, significantly limiting life expectancy in affected patients. Current treatment options for FD include recombinant enzyme-replacement therapies (ERTs) with intravenous agalsidase-α (0.2 mg/kg body weight) or agalsidase-β (1 mg/kg body weight) every 2 weeks, facilitating cellular Gb3 clearance and an overall improvement of disease burden. However, ERT can lead to infusion-associated reactions, as well as the formation of neutralizing anti-drug antibodies (ADAs) in ERT-treated males, leading to an attenuation of therapy efficacy and thus disease progression. In this narrative review, we provide a brief overview of the clinical picture of FD and diagnostic confirmation. The focus is on the biochemical and clinical significance of neutralizing ADAs as a humoral response to ERT. In addition, we provide an overview of different methods for ADA measurement and characterization, as well as potential therapeutic approaches to prevent or eliminate ADAs in affected patients, which is representative for other ERT-treated lysosomal storage diseases.
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Affiliation(s)
- Malte Lenders
- Department of Internal Medicine D, Nephrology, Hypertension and Rheumatology, Interdisciplinary Fabry Center Münster (IFAZ), University Hospital Muenster, Albert-Schweitzer-Campus 1, 48149, Muenster, Germany.
| | - Eva Brand
- Department of Internal Medicine D, Nephrology, Hypertension and Rheumatology, Interdisciplinary Fabry Center Münster (IFAZ), University Hospital Muenster, Albert-Schweitzer-Campus 1, 48149, Muenster, Germany
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DuBuske I, Schmidlin K, Bernstein JA. Successful desensitization of a patient with Fabry disease with agalsidase beta (Fabrazyme) anaphylaxis after omalizumab pretreatment. Ann Allergy Asthma Immunol 2020; 126:96-98. [PMID: 32866621 DOI: 10.1016/j.anai.2020.08.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/08/2020] [Accepted: 08/24/2020] [Indexed: 01/29/2023]
Affiliation(s)
- Ilona DuBuske
- Division of Immunology/Allergy Section, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Kristin Schmidlin
- Division of Immunology/Allergy Section, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Jonathan A Bernstein
- Division of Immunology/Allergy Section, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio.
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Mhanni AA, Auray-Blais C, Boutin M, Johnston A, LeMoine K, Patterson J, Aerts JMFG, West ML, Rockman-Greenberg C. Therapeutic challenges in two adolescent male patients with Fabry disease and high antibody titres. Mol Genet Metab Rep 2020; 24:100618. [PMID: 32612933 PMCID: PMC7322173 DOI: 10.1016/j.ymgmr.2020.100618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 01/29/2023] Open
Abstract
Enzyme replacement therapy (ERT) has been shown to stabilize certain aspects of Fabry disease (FD). However, in some patients on ERT, high antibody titres have been documented, with limited clinical improvement in systemic manifestations and often with significant adverse drug reactions. We present two related adolescent males with a 4.5 kb GLA deletion, not amenable to chaperone therapy, leading to profound reduction in α-galactosidase A (α-gal A) enzyme activity. Over a 3-year period of ERT, increasing IgG antibody titres against α-gal A were noted. After starting ERT serial urine globotriaosylceramide (Gb3) measurements showed an upward trend from 333 to 2260 μg/mmol creatinine for patient 1 and 1165 to 2260 μg/mmol creatinine for patient 2. Markedly increased levels of urine and plasma globotriaosylsphingosine (Lyso-Gb3) analogues were also found. The patients experienced recurrent infusion-associated reactions necessitating premedication and prolonged infusion times. Over the 3-year period of ERT, the patients experienced continued malaise, gastrointestinal symptoms and neuropathic pain. In addition, they had increasing anxiety related to their disease and apparent lack of response to ERT which led to a decision to ultimately stop ERT. No other approved treatment options are currently available for these patients. It is possible that the rapid development of the high antidrug neutralizing antibody (ADA) titres is related to the large GLA deletion leading to virtually absent enzyme activity. It remains unclear if their symptomatology during the period of receiving ERT is related to lack of its efficacy, the rising ADA titres, or both. These two patients highlight the need for further research into the management of antidrug antibodies and additional therapeutic approaches for FD. Synopsis The development of very high antidrug antibody titres in response to ERT in two related adolescent males with FD highlight the need for other therapeutic options for patients in whom ERT or other currently approved therapies does not meet their treatment needs.
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Affiliation(s)
- Aizeddin A Mhanni
- Department of Pediatrics and Child Health, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Christiane Auray-Blais
- Division of Medical Genetics, Department of Pediatrics, Centre de Recherche-CHUS, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Michel Boutin
- Division of Medical Genetics, Department of Pediatrics, Centre de Recherche-CHUS, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Alie Johnston
- Department of Pediatrics and Child Health, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
| | - Kaye LeMoine
- Nova Scotia Health Authority, Halifax, Nova Scotia, Canada
| | - Jill Patterson
- Department of Pediatrics and Child Health, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | | | - Michael L West
- Nova Scotia Health Authority, Halifax, Nova Scotia, Canada.,Department of Medicine, Dalhousie University, Halifax, NS, Canada
| | - Cheryl Rockman-Greenberg
- Department of Pediatrics and Child Health, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.,Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada
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Cairns T, Müntze J, Gernert J, Spingler L, Nordbeck P, Wanner C. Hot topics in Fabry disease. Postgrad Med J 2018; 94:709-713. [PMID: 30559317 PMCID: PMC6581083 DOI: 10.1136/postgradmedj-2018-136056] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 11/06/2018] [Accepted: 12/01/2018] [Indexed: 01/17/2023]
Abstract
Fabry disease is a rare inborn error of the enzyme α-galactosidase (α-Gal) and results in lysosomal substrate accumulation in tissues with a wide range of clinical presentations. The disease has attracted a lot of interest over the last years, in particular since enzyme replacement therapy (ERT) has become widely available in 2001. With rising awareness and rising numbers of (diagnosed) patients, physicians encounter new challenges. Over 900 α-Gal gene mutations are currently known, some with doubtful clinical significance, posing diagnostic and prognostic difficulties for the clinician and a lot of uncertainty for patients. Another challenge are patients who develop neutralising antibodies to ERT, which possibly leads to reduced therapy effectiveness. In this article, we summarise the latest developments in the science community regarding diagnostics and management of this rare lysosomal storage disorder and offer an outlook to future treatments.
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Affiliation(s)
- Tereza Cairns
- Department of Internal Medicine, Divisions of Nephrology and Cardiology, University Hospital Würzburg, Würzburg, Germany
| | - Jonas Müntze
- Department of Internal Medicine, Divisions of Nephrology and Cardiology, University Hospital Würzburg, Würzburg, Germany
| | - Judith Gernert
- Department of Internal Medicine, Divisions of Nephrology and Cardiology, University Hospital Würzburg, Würzburg, Germany
| | - Lisa Spingler
- Department of Internal Medicine, Divisions of Nephrology and Cardiology, University Hospital Würzburg, Würzburg, Germany
| | - Peter Nordbeck
- Department of Internal Medicine, Divisions of Nephrology and Cardiology, University Hospital Würzburg, Würzburg, Germany
| | - Christoph Wanner
- Department of Internal Medicine, Divisions of Nephrology and Cardiology, University Hospital Würzburg, Würzburg, Germany
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8
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Lenders M, Brand E. Effects of Enzyme Replacement Therapy and Antidrug Antibodies in Patients with Fabry Disease. J Am Soc Nephrol 2018; 29:2265-2278. [PMID: 30093456 DOI: 10.1681/asn.2018030329] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Malte Lenders
- Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology, University Hospital Muenster, Muenster, Germany
| | - Eva Brand
- Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology, University Hospital Muenster, Muenster, Germany
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Wanner C, Arad M, Baron R, Burlina A, Elliott PM, Feldt-Rasmussen U, Fomin VV, Germain DP, Hughes DA, Jovanovic A, Kantola I, Linhart A, Mignani R, Monserrat L, Namdar M, Nowak A, Oliveira JP, Ortiz A, Pieroni M, Spada M, Tylki-Szymańska A, Tøndel C, Viana-Baptista M, Weidemann F, Hilz MJ. European expert consensus statement on therapeutic goals in Fabry disease. Mol Genet Metab 2018; 124:189-203. [PMID: 30017653 DOI: 10.1016/j.ymgme.2018.06.004] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/31/2018] [Accepted: 06/10/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND Fabry disease, an inherited lysosomal storage disorder, causes multi-organ pathology resulting in substantial morbidity and a reduced life expectancy. Although Fabry disease is an X-linked disorder, both genders may be affected, but generally to a lesser extent in females. The disease spectrum ranges from classic early-onset disease to non-classic later-onset phenotypes, with complications occurring in multiple organs or being confined to a single organ system depending on the stage of the disease. The impact of therapy depends upon patient- and disease-specific factors and timing of initiation. METHODS A European panel of experts collaborated to develop a set of organ-specific therapeutic goals for Fabry disease, based on evidence identified in a recent systematic literature review and consensus opinion. RESULTS A series of organ-specific treatment goals were developed. For each organ system, optimal treatment strategies accounted for inter-patient differences in disease severity, natural history, and treatment responses as well as the negative burden of therapy and the importance of multidisciplinary care. The consensus therapeutic goals and proposed patient management algorithm take into account the need for early disease-specific therapy to delay or slow the progression of disease as well as non-specific adjunctive therapies that prevent or treat the effects of organ damage on quality of life and long-term prognosis. CONCLUSIONS These consensus recommendations help advance Fabry disease management by considering the balance between anticipated clinical benefits and potential therapy-related challenges in order to facilitate individualized treatment, optimize patient care and improve quality of life.
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Affiliation(s)
- Christoph Wanner
- Division of Nephrology, University Clinic, University of Würzburg, Würzburg, Germany.
| | - Michael Arad
- Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Tel Aviv University, Israel
| | - Ralf Baron
- Division of Neurological Pain Research and Therapy, Department of Neurology, Universitätsklinikum Schleswig-Holstein, Kiel, Germany
| | | | - Perry M Elliott
- Barts Heart Centre, University College London, London, United Kingdom
| | - Ulla Feldt-Rasmussen
- Department of Medical Endocrinology, Section 2132, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Victor V Fomin
- I.M. Sechenov First Moscow State Medical University, Department of Internal Diseases No. 1, Moscow, Russian Federation
| | - Dominique P Germain
- French Referral Center for Fabry disease, Division of Medical Genetics and INSERM U1179, University of Versailles, Paris-Saclay University, Montigny, France
| | - Derralynn A Hughes
- Lysosomal Storage Disorders Unit, Department of Haematology, Royal Free London NHS Foundation Trust, University College London, United Kingdom
| | - Ana Jovanovic
- Mark Holland Metabolic Unit, Salford Royal NHS Foundation Trust, Salford, United Kingdom
| | - Ilkka Kantola
- Division of Medicine, Turku University Hospital, Turku, Finland
| | - Aleš Linhart
- Second Department of Medicine - Department of Cardiovascular Medicine, 1st Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic
| | - Renzo Mignani
- Department of Nephrology, Infermi Hospital, Rimini, Italy
| | | | - Mehdi Namdar
- Service de Cardiologie, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - Albina Nowak
- University Heart Center, University Hospital of Zurich and University of Zurich, Zurich, Switzerland
| | - João-Paulo Oliveira
- Department of Genetics, São João Hospital Centre & Faculty of Medicine and "Instituto de Investigação e Inovação em Saúde (i3S)", University of Porto, Porto, Portugal
| | - Alberto Ortiz
- Unidad de Diálisis, IIS-Fundación Jiménez Díaz/UAM, IRSIN and REDINREN, Madrid, Spain
| | | | - Marco Spada
- Department of Paediatrics, University of Torino, Torino, Italy
| | - Anna Tylki-Szymańska
- Department of Paediatrics, Nutrition and Metabolic Diseases, Children's Memorial Health Institute, Warsaw, Poland
| | - Camilla Tøndel
- Department of Paediatrics, Haukeland University Hospital and Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Miguel Viana-Baptista
- Serviço de Neurologia, Hospital Egas Moniz, Centro Hospitalar de Lisboa Ocidental, CEDOC Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Lisboa, Portugal
| | - Frank Weidemann
- Department of Cardiology, Innere Klinik II, Katharinen-Hospital, Unna, Germany
| | - Max J Hilz
- Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany
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Ortiz A, Germain DP, Desnick RJ, Politei J, Mauer M, Burlina A, Eng C, Hopkin RJ, Laney D, Linhart A, Waldek S, Wallace E, Weidemann F, Wilcox WR. Fabry disease revisited: Management and treatment recommendations for adult patients. Mol Genet Metab 2018. [PMID: 29530533 DOI: 10.1016/j.ymgme.2018.02.014] [Citation(s) in RCA: 364] [Impact Index Per Article: 60.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Fabry disease is an X-linked lysosomal storage disorder caused by mutations in the GLA gene leading to deficient α-galactosidase A activity, glycosphingolipid accumulation, and life-threatening complications. Phenotypes vary from the "classic" phenotype, with pediatric onset and multi-organ involvement, to later-onset, a predominantly cardiac phenotype. Manifestations are diverse in female patients in part due to variations in residual enzyme activity and X chromosome inactivation patterns. Enzyme replacement therapy (ERT) and adjunctive treatments can provide significant clinical benefit. However, much of the current literature reports outcomes after late initiation of ERT, once substantial organ damage has already occurred. Updated monitoring and treatment guidelines for pediatric patients with Fabry disease have recently been published. Expert physician panels were convened to develop updated, specific guidelines for adult patients. Management of adult patients depends on 1) a personalized approach to care, reflecting the natural history of the specific disease phenotype; 2) comprehensive evaluation of disease involvement prior to ERT initiation; 3) early ERT initiation; 4) thorough routine monitoring for evidence of organ involvement in non-classic asymptomatic patients and response to therapy in treated patients; 5) use of adjuvant treatments for specific disease manifestations; and 6) management by an experienced multidisciplinary team.
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Affiliation(s)
- Alberto Ortiz
- Unidad de Dialisis, IIS-Fundacion Jimenez Diaz, School of Medicine, UAM, IRSIN and REDINREN, Madrid, Spain.
| | - Dominique P Germain
- French Referral Center for Fabry disease, Division of Medical Genetics and INSERM U1179, University of Versailles, Paris-Saclay University, Montigny, France
| | - Robert J Desnick
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Juan Politei
- Department of Neurology, Fundacion Para el Estudio de Enfermedades Neurometabolicas (FESEN), Buenos Aires, Argentina
| | - Michael Mauer
- Departments of Pediatrics and Medicine, University of Minnesota, Minneapolis, MN, USA
| | | | - Christine Eng
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Robert J Hopkin
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Dawn Laney
- Division of Medical Genetics, Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | - Aleš Linhart
- 2nd Department of Internal - Cardiovascular Medicine, First Medical Faculty, Charles University, Prague, Czech Republic
| | - Stephen Waldek
- School of Pharmacy, University of Sunderland, Sunderland, UK
| | - Eric Wallace
- Department of Medicine, Division of Nephrology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Frank Weidemann
- Department of Internal Medicine, Katharinen-Hospital Unna, Unna, Germany
| | - William R Wilcox
- Division of Medical Genetics, Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
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Abstract
Cardiorenal syndrome type 5 (CRS-5) includes conditions where there is a simultaneous involvement of the heart and kidney from a systemic disorder. This is a bilateral organ cross talk. Fabry's disease (FD) is a devastating progressive inborn error of metabolism with lysosomal glycosphingolipid deposition in variety of cell types, capillary endothelial cells, renal, cardiac and nerve cells. Basic effect is absent or deficient activity of lysosomal exoglycohydrolase a-galactosidase A. Renal involvement consists of proteinuria, isosthenuria, altered tubular function, presenting in second or third decade leading to azotemia and end-stage renal disease in third to fifth decade mainly due to irreversible changes to glomerular, tubular and vascular structures, especially highlighted by podocytes foot process effacement. Cardiac involvement consists of left ventricular hypertrophy, right ventricular hypertrophy, arrhythmias (sinus node and conduction system impairment), diastolic dysfunction, myocardial ischemia, infarction, transmural replacement fibrosis, congestive heart failure and cardiac death. Management of FD is based on enzymatic replacement therapy and control of renal (with anti-proteinuric agents such as angiotensin-converting enzyme inhibitors-and/or angiotensin II receptor blockers), brain (coated aspirin, clopidogrel and statin to prevent strokes) and heart complications (calcium channel blockers for ischemic cardiomyopathy, warfarin and amiodarone or cardioverter device for arrhythmias).
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Oral Migalastat HCl Leads to Greater Systemic Exposure and Tissue Levels of Active α-Galactosidase A in Fabry Patients when Co-Administered with Infused Agalsidase. PLoS One 2015; 10:e0134341. [PMID: 26252393 PMCID: PMC4529213 DOI: 10.1371/journal.pone.0134341] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 07/07/2015] [Indexed: 11/19/2022] Open
Abstract
UNLABELLED Migalastat HCl (AT1001, 1-Deoxygalactonojirimycin) is an investigational pharmacological chaperone for the treatment of α-galactosidase A (α-Gal A) deficiency, which leads to Fabry disease, an X-linked, lysosomal storage disorder. The currently approved, biologics-based therapy for Fabry disease is enzyme replacement therapy (ERT) with either agalsidase alfa (Replagal) or agalsidase beta (Fabrazyme). Based on preclinical data, migalastat HCl in combination with agalsidase is expected to result in the pharmacokinetic (PK) enhancement of agalsidase in plasma by increasing the systemic exposure of active agalsidase, thereby leading to increased cellular levels in disease-relevant tissues. This Phase 2a study design consisted of an open-label, fixed-treatment sequence that evaluated the effects of single oral doses of 150 mg or 450 mg migalastat HCl on the PK and tissue levels of intravenously infused agalsidase (0.2, 0.5, or 1.0 mg/kg) in male Fabry patients. As expected, intravenous administration of agalsidase alone resulted in increased α-Gal A activity in plasma, skin, and peripheral blood mononuclear cells (PBMCs) compared to baseline. Following co-administration of migalastat HCl and agalsidase, α-Gal A activity in plasma was further significantly increased 1.2- to 5.1-fold compared to agalsidase administration alone, in 22 of 23 patients (95.6%). Importantly, similar increases in skin and PBMC α-Gal A activity were seen following co-administration of migalastat HCl and agalsidase. The effects were not related to the administered migalastat HCl dose, as the 150 mg dose of migalastat HCl increased α-Gal A activity to the same extent as the 450 mg dose. Conversely, agalsidase had no effect on the plasma PK of migalastat. No migalastat HCl-related adverse events or drug-related tolerability issues were identified. TRIAL REGISTRATION ClinicalTrials.gov NCT01196871.
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Coformulation of a Novel Human α-Galactosidase A With the Pharmacological Chaperone AT1001 Leads to Improved Substrate Reduction in Fabry Mice. Mol Ther 2015; 23:1169-1181. [PMID: 25915924 PMCID: PMC4817779 DOI: 10.1038/mt.2015.87] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 04/20/2015] [Indexed: 12/22/2022] Open
Abstract
Fabry disease is an X-linked lysosomal storage disorder caused by mutations in the gene that encodes α-galactosidase A and is characterized by pathological accumulation of globotriaosylceramide and globotriaosylsphingosine. Earlier, the authors demonstrated that oral coadministration of the pharmacological chaperone AT1001 (migalastat HCl; 1-deoxygalactonojirimycin HCl) prior to intravenous administration of enzyme replacement therapy improved the pharmacological properties of the enzyme. In this study, the authors investigated the effects of coformulating AT1001 with a proprietary recombinant human α-galactosidase A (ATB100) into a single intravenous formulation. AT1001 increased the physical stability and reduced aggregation of ATB100 at neutral pH in vitro, and increased the potency for ATB100-mediated globotriaosylceramide reduction in cultured Fabry fibroblasts. In Fabry mice, AT1001 coformulation increased the total exposure of active enzyme, and increased ATB100 levels in cardiomyocytes, cardiac vascular endothelial cells, renal distal tubular epithelial cells, and glomerular cells, cell types that do not show substantial uptake with enzyme replacement therapy alone. Notably, AT1001 coformulation also leads to greater tissue globotriaosylceramide reduction when compared with ATB100 alone, which was positively correlated with reductions in plasma globotriaosylsphingosine. Collectively, these data indicate that intravenous administration of ATB100 coformulated with AT1001 may provide an improved therapy for Fabry disease and thus warrants further investigation.
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Parenti G, Andria G, Valenzano KJ. Pharmacological Chaperone Therapy: Preclinical Development, Clinical Translation, and Prospects for the Treatment of Lysosomal Storage Disorders. Mol Ther 2015; 23:1138-1148. [PMID: 25881001 DOI: 10.1038/mt.2015.62] [Citation(s) in RCA: 181] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 04/01/2015] [Indexed: 02/06/2023] Open
Abstract
Lysosomal storage disorders (LSDs) are a group of inborn metabolic diseases caused by mutations in genes that encode proteins involved in different lysosomal functions, in most instances acidic hydrolases. Different therapeutic approaches have been developed to treat these disorders. Pharmacological chaperone therapy (PCT) is an emerging approach based on small-molecule ligands that selectively bind and stabilize mutant enzymes, increase their cellular levels, and improve lysosomal trafficking and activity. Compared to other approaches, PCT shows advantages, particularly in terms of oral administration, broad biodistribution, and positive impact on patients' quality of life. After preclinical in vitro and in vivo studies, PCT is now being translated in the first clinical trials, either as monotherapy or in combination with enzyme replacement therapy, for some of the most prevalent LSDs. For some LSDs, the results of the first clinical trials are encouraging and warrant further development. Future research in the field of PCT will be directed toward the identification of novel chaperones, including new allosteric drugs, and the exploitation of synergies between chaperone treatment and other therapeutic approaches.
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Affiliation(s)
- Giancarlo Parenti
- Department of Translational Medical Sciences, Section of Pediatrics, Federico II University, Naples, Italy; Telethon Institute of Genetics and Medicine, Pozzuoli, Italy.
| | - Generoso Andria
- Department of Translational Medical Sciences, Section of Pediatrics, Federico II University, Naples, Italy
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Bigger BW, Saif M, Linthorst GE. The role of antibodies in enzyme treatments and therapeutic strategies. Best Pract Res Clin Endocrinol Metab 2015; 29:183-94. [PMID: 25987172 DOI: 10.1016/j.beem.2015.01.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Substitution of the defective lysosomal enzyme in lysosomal storage disorders (LSDs) often elicits antibody formation towards the infused protein. Aside from Gaucher disease, antibodies often lead to infusion associated reactions and a reduced biochemical response. In Pompe disease, antibody titer is predictive of clinical outcome, but this is less apparent in other LSDs and warrants further study. Few laboratories are capable of enzyme-antibody determination: often physicians need to rely on the enzyme manufacturer for analysis. Currently, laboratories employ different antibody assays which hamper comparisons between cohorts or treatment regimens. Assay standardisation, including measurement of antibody-related enzyme inhibition, is therefore urgently needed. Successful immunomodulation has been reported in Pompe and in Gaucher disease, with variable success. Immunomodulation regimens that contain temporary depletion of B-cells (anti-CD20) are most used. Bone marrow transplantation in MPS-I results in disappearance of antibodies. No other clinical studies have been conducted in humans with immunomodulation in other LSDs.
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Affiliation(s)
- Brian W Bigger
- Stem Cell & Neurotherapies Laboratory, Faculty of Medical and Human Sciences, University of Manchester, Manchester M13 9PT, UK.
| | - Muhammad Saif
- Department of Clinical Haematology, Manchester Royal Infirmary, Oxford Road, Manchester M13 9WL, UK.
| | - Gabor E Linthorst
- Department of Endocrinology and Metabolism, Academic Medical Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands.
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Tsuboi K, Yamamoto H, Somura F, Goto H. Successful management of enzyme replacement therapy in related fabry disease patients with severe adverse events by switching from agalsidase Beta (fabrazyme(®)) to agalsidase alfa (replagal (®)). JIMD Rep 2014; 15:105-11. [PMID: 24718841 DOI: 10.1007/8904_2014_304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 01/07/2014] [Accepted: 02/19/2014] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Enzyme replacement therapy (ERT) is the only approved therapy for Fabry disease. In June 2009, there was a worldwide shortage of agalsidase beta, necessitating dose reductions or switching to agalsidase alfa in some patients. CASE PRESENTATION We present two cases of Fabry disease (a parent and a child) who received agalsidase beta for 27 months at the licensed dose and 10 months at a reduced dose, followed by a switch to agalsidase alfa for 28 months. Case 1, a 26-year-old male had severe coughing and fatigue during ERT with agalsidase beta requiring antitussive and asthmatic drug therapy. After switching to agalsidase alfa, the coughing gradually resolved completely. Case 2, a 62-year-old female had advanced cardiac manifestations at the time of diagnosis. Despite receiving ERT with the approved dose of agalsidase beta, she experienced aggravation of congestive heart failure and was hospitalized. After switching to agalsidase alfa with standard care in heart disease, BNP level, echocardiographic parameters, eGFR rate and lyso-Gb3 levels were improved or stabilized. CONCLUSIONS We report on two Fabry disease patients who experienced severe adverse events while on approved and/or reduced doses of agalsidase beta. Switching to agalsidase alfa associated with standard care in heart disease led to resolution or improvement in the cardiorespiratory status. And reduction in dose associated with standard care in respiratory disease was useful for decrease in cough and fatigue. Plasma BNP level was useful for monitoring heart failure and the effects of ERT.
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Affiliation(s)
- Kazuya Tsuboi
- LSD Center and Department of Hematology, Nagoya Central Hospital, 3-7-7 Taiko, Nakamura-ku, Nagoya, Aichi, 453-0801, Japan,
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Talreja N, Butt A, Valle RLD, Fox RW, Lockey RF. Successful desensitization to agalsidase beta after anaphylaxis. Ann Allergy Asthma Immunol 2014; 112:71-2. [PMID: 24331397 DOI: 10.1016/j.anai.2013.11.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 10/16/2013] [Accepted: 11/04/2013] [Indexed: 11/17/2022]
Affiliation(s)
- Neetu Talreja
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida and James A. Haley Veterans' Hospital, Tampa, Florida.
| | - Ahmed Butt
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida and James A. Haley Veterans' Hospital, Tampa, Florida
| | - Ramon Lopez Del Valle
- Division of Nephrology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida and James A. Haley Veterans' Hospital, Tampa, Florida
| | - Roger W Fox
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida and James A. Haley Veterans' Hospital, Tampa, Florida
| | - Richard F Lockey
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida and James A. Haley Veterans' Hospital, Tampa, Florida
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Abstract
Pompe disease (PD) is a severe life-threatening disease in which enzyme replacement therapy (ERT) with alglucosidase alfa is the only treatment available. Recently it has been shown that antibody formation may have a significant adverse effect on response to ERT. We report a cross-reactive immunologic material (CRIM)-positive PD infant who developed severe infusion-associated reactions (IARs) after 15 uneventful months of ERT. We successfully got the child to tolerate the ERT by a desensitisation protocol. We diluted the total amount of standard alglucosidase alfa infusion (20 mg/kg/dose) to 1/100 (0.2 mg/kg/dose). The original infusion rates were maintained. We doubled this dose every week. No premedication was given. In 8 weeks, we reached the standard dose without any IAR. No further reactions have been observed during 6 months of follow-up. Importantly, clinical deterioration that was observed during the period of reduced enzyme delivery has almost completely reversed. We conclude that this protocol was effective in our patient, while being safe and easy to follow, and may be suitable in selected cases.
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Boyd RE, Lee G, Rybczynski P, Benjamin ER, Khanna R, Wustman BA, Valenzano KJ. Pharmacological chaperones as therapeutics for lysosomal storage diseases. J Med Chem 2013; 56:2705-25. [PMID: 23363020 DOI: 10.1021/jm301557k] [Citation(s) in RCA: 160] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Lysosomal enzymes are responsible for the degradation of a wide variety of glycolipids, oligosaccharides, proteins, and glycoproteins. Inherited mutations in the genes that encode these proteins can lead to reduced stability of newly synthesized lysosomal enzymes. While often catalytically competent, the mutated enzymes are unable to efficiently pass the quality control mechanisms of the endoplasmic reticulum, resulting in reduced lysosomal trafficking, substrate accumulation, and cellular dysfunction. Pharmacological chaperones (PCs) are small molecules that bind and stabilize mutant lysosomal enzymes, thereby allowing proper cellular translocation. Such compounds have been shown to increase enzyme activity and reduce substrate burden in a number of preclinical models and clinical studies. In this Perspective, we review several of the lysosomal diseases for which PCs have been studied and the SAR of the various classes of molecules.
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Affiliation(s)
- Robert E Boyd
- Amicus Therapeutics, 1 Cedar Brook Drive, Cranbury, New Jersey 08512, United States.
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Smid BE, Hoogendijk SL, Wijburg FA, Hollak CEM, Linthorst GE. A revised home treatment algorithm for Fabry disease: influence of antibody formation. Mol Genet Metab 2013; 108:132-7. [PMID: 23332169 DOI: 10.1016/j.ymgme.2012.12.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 12/19/2012] [Accepted: 12/19/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND Enzyme replacement therapy for Fabry disease, consisting of biweekly infusions, interferes daily life. Home treatment proved beneficial. We evaluated a previously reported home treatment algorithm aiming to shorten the period of in-hospital infusions, while ascertaining patient safety. METHODS Retrospective analysis on clinical records of treated Fabry patients. Potentially predictive factors for infusion associated reactions (IARs) were studied: agalsidase antibodies, agalsidase product and dose, FOS-SSI scores, and GLA activity and mutation. A questionnaire evaluated patient satisfaction and compliance. RESULTS Seventy-nine patients were included (41 males, 46% agalsidase antibody positive (AB+)). 85% received home treatment. Home treatment complications were erroneous fast infusion rates (n=4) causing IARs and, rarely, venous access problems. The single SAE was unrelated to home treatment. IgG antibody status was significantly associated with IARs (89% vs. 26% p-value<0.01). Negative antibody status did not preclude IARs. Except for three AB+ patients, all first IARs occurred within 13 infusions. IARs occurred more frequently in patients using agalsidase beta 1.0 mg/kg/eow than agalsidase alpha or beta 0.2 mg/kg/eow, but the time to first IAR did not differ between groups. Four AB+ males experienced IARs after a dose increase. Compliance between home and in-hospital treatment was similar. Most patients preferred home treatment. CONCLUSION In this study home therapy for Fabry disease was safe and improved patient satisfaction. We propose a revised algorithm which allows safe home-treatment in all male patients after 13 instead of 26 infusions, irrespective of ERT preparation or dose. Furthermore, AB+ patients with dosage increase may experience new or increased IARs, necessitating in-hospital observations.
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Affiliation(s)
- B E Smid
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Academic Medical Centre, Amsterdam, The Netherlands.
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22
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Abstract
Fabry disease results from deficient activity of the enzyme α-galactosidase A and progressive lysosomal deposition of globotriaosylceramide (GL-3) in cells throughout the body. The main neurological presentations of Fabry disease patients are painful neuropathy, hypohidrosis, and stroke. Fabry neuropathy is characterized as a length-dependent peripheral neuropathy affecting mainly the small myelinated (Aδ) fibers and unmyelinated (C) fibers. Enzyme replacement therapy (ERT) has been shown to have some positive effects on the reduction of neuropathic pain, the improvement of detection threshold for thermal sensation, and sweat function. On the contrary, the effect of ERT on the central nervous system has not been established. Early initiation of ERT before irreversible organ failure is extremely important, and alternative therapeutic approaches are currently being explored. Heterozygotes suffer from peripheral neuropathy at a higher rate than previously shown, significant multisystemic disease, and severely decreased quality of life. As well as being carriers, heterozygotes also display symptoms of Fabry disease, and should be carefully monitored and given adequate therapy.
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Affiliation(s)
- Keiko Toyooka
- Department of Neurology, National Hospital Organization Toneyama National Hospital, Toyonaka, Osaka, Japan.
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Deegan PB. Fabry disease, enzyme replacement therapy and the significance of antibody responses. J Inherit Metab Dis 2012; 35:227-43. [PMID: 22037707 DOI: 10.1007/s10545-011-9400-y] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Revised: 08/25/2011] [Accepted: 09/15/2011] [Indexed: 12/23/2022]
Abstract
Fabry disease is an X-linked disorder caused by a deficiency of α-galactosidase A. This leads to a progressive accumulation of globotriaosylceramide in tissues throughout the body. Cardiac, renal and neurological manifestations are common and life expectancy is significantly reduced relative to the general population. Management of Fabry disease involves the administration of intravenous enzyme replacement therapy (ERT). Two forms - agalsidase alfa and agalsidase beta - have been licensed in certain jurisdictions and are generally well tolerated; however, some patients develop antibodies to the infused enzyme, which may impair the efficacy and safety of treatment. Agalsidase alfa and agalsidase beta are produced in different systems; this leads to certain differences in post-translational modification that may affect immunogenicity. Immunoglobulin (Ig) G antibodies have frequently been reported in patients with Fabry disease receiving ERT; IgG responses are reported in a greater proportion of patients receiving agalsidase beta than in patients receiving agalsidase alfa. IgE antibodies are less common than IgG antibodies, and have not been observed in patients receiving agalsidase alfa. However, these data are difficult to interpret due to methodological differences in the assessment of seropositivity, and in the doses of enzyme used. The clinical impact of the development of IgG antibodies to ERT in patients with Fabry disease remains unclear, due to lack of data and to the marked heterogeneity of patients both in terms of disease manifestations and response to therapy. Further studies that examine the development of antibodies in patients with Fabry disease and the potential impact of such antibodies on the outcome of ERT are necessary.
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Affiliation(s)
- Patrick B Deegan
- Department of Medicine, Addenbrooke's Hospital, Cambridge, CB2 2QQ, UK.
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Benjamin ER, Khanna R, Schilling A, Flanagan JJ, Pellegrino LJ, Brignol N, Lun Y, Guillen D, Ranes BE, Frascella M, Soska R, Feng J, Dungan L, Young B, Lockhart DJ, Valenzano KJ. Co-administration with the pharmacological chaperone AT1001 increases recombinant human α-galactosidase A tissue uptake and improves substrate reduction in Fabry mice. Mol Ther 2012; 20:717-26. [PMID: 22215019 PMCID: PMC3321591 DOI: 10.1038/mt.2011.271] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Fabry disease is an X-linked lysosomal storage disorder (LSD) caused by mutations in the gene (GLA) that encodes the lysosomal hydrolase α-galactosidase A (α-Gal A), and is characterized by pathological accumulation of the substrate, globotriaosylceramide (GL-3). Regular infusion of recombinant human α-Gal A (rhα-Gal A), termed enzyme replacement therapy (ERT), is the primary treatment for Fabry disease. However, rhα-Gal A has low physical stability, a short circulating half-life, and variable uptake into different disease-relevant tissues. We hypothesized that coadministration of the orally available, small molecule pharmacological chaperone AT1001 (GR181413A, 1-deoxygalactonojirimycin, migalastat hydrochloride) may improve the pharmacological properties of rhα-Gal A via binding and stabilization. AT1001 prevented rhα-Gal A denaturation and activity loss in vitro at neutral pH and 37 °C. Coincubation of Fabry fibroblasts with rhα-Gal A and AT1001 resulted in up to fourfold higher cellular α-Gal A and ~30% greater GL-3 reduction compared to rhα-Gal A alone. Furthermore, coadministration of AT1001 to rats increased the circulating half-life of rhα-Gal A by >2.5-fold, and in GLA knockout mice resulted in up to fivefold higher α-Gal A levels and fourfold greater GL-3 reduction than rhα-Gal A alone. Collectively, these data highlight the potentially beneficial effects of AT1001 on rhα-Gal A, thus warranting clinical investigation.
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El-Gharbawy AH, Mackey J, DeArmey S, Westby G, Grinnell SG, Malovrh P, Conway R, Kishnani PS. An individually, modified approach to desensitize infants and young children with Pompe disease, and significant reactions to alglucosidase alfa infusions. Mol Genet Metab 2011; 104:118-22. [PMID: 21802969 PMCID: PMC3711228 DOI: 10.1016/j.ymgme.2011.07.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 07/04/2011] [Accepted: 07/04/2011] [Indexed: 11/20/2022]
Abstract
PURPOSE Pompe disease (PD) is a progressive metabolic myopathy for which the only available treatment is alglucosidase alfa (Myozyme®). Enzyme replacement therapy (ERT) has improved ventilator-free survival, and cardiac and motor functions in patients with infantile PD. However, for an adequate response to occur, a large amount of enzymes must be infused. In some patients, this may be problematic due to infusion-associated reactions (IARs) occurring in approximately 50% of patients receiving alglucosidase alfa infusions. Whilst the majority of these reactions are mild, life threatening hypersensitivity reactions may occur in some patients. In these patients desensitization is indicated to enable continued ERT safely. Infants and young children with PD and significant infusion reactions pose unique management challenges because of their young age, limited communication skills, variable presentation and underlying cardiomyopathy. METHODS/SUBJECTS In 2 patients with PD who experienced significant ERT-related reactions: an infant (IgE positive) and a young child (IgE negative), we implemented a desensitization protocol, that started by administering a reduced dose of alglucosidase alfa (10 mg/kg weekly) instead of the standard (20 mg/kg bi-weekly) using serial micro-dilutions that were individually prepared and delivered in a highly regulated manner based on patients' clinical manifestations and tolerance. RESULTS Successful desensitization was achieved in both patients, allowing them to eventually continue to receive the full dose of ERT safely. CONCLUSION Therapeutic demands in infants and young children with PD need to be tailored according to the patient presentation, and underlying cardiac and fluid-volume status. Desensitization allowed both patients to continue alglucosidase alfa treatment at the recommended dose without prolonged interruption of therapy, or further reactions.
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Affiliation(s)
- Areeg H. El-Gharbawy
- Department of Pediatrics, Division of Medical Genetics, Duke University Medical, Center, Durham, NC, USA
| | - Joanne Mackey
- Department of Pediatrics, Division of Medical Genetics, Duke University Medical, Center, Durham, NC, USA
| | - Stephanie DeArmey
- Department of Pediatrics, Division of Medical Genetics, Duke University Medical, Center, Durham, NC, USA
| | - Greg Westby
- Department of Pediatrics, Division of Medical Genetics, Duke University Medical, Center, Durham, NC, USA
| | | | - Peggy Malovrh
- Pediatric Outpatient Services, Sparrow Health System Lansing, MI, USA
| | - Robert Conway
- Department of Pediatrics and Human Development, Michigan State University, East Lansing, MI, USA
| | - Priya S. Kishnani
- Department of Pediatrics, Division of Medical Genetics, Duke University Medical, Center, Durham, NC, USA
- Corresponding author at: Division of Medical Genetics, Department of Pediatrics, Box 103856 DUMC, 4th Floor GSRBI, 595 LaSalle Street, Durham, NC 27710, USA. Fax: +1 919 684 8944., (P.S. Kishnani)
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Guest JF, Concolino D, Di Vito R, Feliciani C, Parini R, Zampetti A. Modelling the resource implications of managing adults with Fabry disease in Italy. Eur J Clin Invest 2011; 41:710-8. [PMID: 21299550 DOI: 10.1111/j.1365-2362.2010.02458.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AIMS This study estimated the resource implications and budget impact of managing adults with Fabry disease in Italy, from the perspective of the Servizio Sanitario Nazionale (SSN). METHODS A decision model was constructed using published clinical outcomes and clinician-derived resource utilisation estimates depicting the management of adults with Fabry disease in Italy. RESULTS The expected annual cost of managing 220 existing and 20 new Fabry patients in Italy was estimated to be €28·3 million. In an average year, patients receiving enzyme replacement therapy (ERT) with 0·2 mg kg(-1) agalsidase alfa (Replagal; Shire Human Genetic Therapies, Basingstoke, Hampshire, UK) or 1·0 mg kg(-1) agalsidase beta (Fabrazyme; Genzyme Europe BV, Naarden, The Netherlands) are collectively expected to make 4500 hospital attendances to a day ward for infusions, which equates to 2000 eight-h days on the day ward associated with ERT. If all ERT-treated patients received their infusions at home, there would be a marginal reduction in the annual health care cost to manage these patients, and the total annual number of days on the day ward associated with ERT in the second year could potentially be reduced from a mean 2000 to zero, thereby releasing substantial hospital resources for use by non-Fabry patients. Currently, only agalsidase alfa is licensed for home treatment in Italy; hence, only patients receiving this enzyme could be offered home treatment. CONCLUSION Use of agalsidase alfa (0·2 mg kg(-1) ) instead of agalsidase beta (1·0 mg kg(-1)) has the potential to reduce health care costs and release hospital resources in different specialities for alternative use by non-Fabry patients, thereby improving the efficiency of the public health care system in Italy.
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Affiliation(s)
- Julian F Guest
- Catalyst Health Economics Consultants, Northwood, Middlesex, UK.
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Valenzano KJ, Khanna R, Powe AC, Boyd R, Lee G, Flanagan JJ, Benjamin ER. Identification and characterization of pharmacological chaperones to correct enzyme deficiencies in lysosomal storage disorders. Assay Drug Dev Technol 2011; 9:213-35. [PMID: 21612550 PMCID: PMC3102255 DOI: 10.1089/adt.2011.0370] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Many human diseases result from mutations in specific genes. Once translated, the resulting aberrant proteins may be functionally competent and produced at near-normal levels. However, because of the mutations, the proteins are recognized by the quality control system of the endoplasmic reticulum and are not processed or trafficked correctly, ultimately leading to cellular dysfunction and disease. Pharmacological chaperones (PCs) are small molecules designed to mitigate this problem by selectively binding and stabilizing their target protein, thus reducing premature degradation, facilitating intracellular trafficking, and increasing cellular activity. Partial or complete restoration of normal function by PCs has been shown for numerous types of mutant proteins, including secreted proteins, transcription factors, ion channels, G protein-coupled receptors, and, importantly, lysosomal enzymes. Collectively, lysosomal storage disorders (LSDs) result from genetic mutations in the genes that encode specific lysosomal enzymes, leading to a deficiency in essential enzymatic activity and cellular accumulation of the respective substrate. To date, over 50 different LSDs have been identified, several of which are treated clinically with enzyme replacement therapy or substrate reduction therapy, although insufficiently in some cases. Importantly, a wide range of in vitro assays are now available to measure mutant lysosomal enzyme interaction with and stabilization by PCs, as well as subsequent increases in cellular enzyme levels and function. The application of these assays to the identification and characterization of candidate PCs for mutant lysosomal enzymes will be discussed in this review. In addition, considerations for the successful in vivo use and development of PCs to treat LSDs will be discussed.
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Tanaka A, Takeda T, Hoshina T, Fukai K, Yamano T. Enzyme replacement therapy in a patient with Fabry disease and the development of IgE antibodies against agalsidase beta but not agalsidase alpha. J Inherit Metab Dis 2010; 33 Suppl 3:S249-52. [PMID: 20567910 DOI: 10.1007/s10545-010-9136-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Revised: 05/14/2010] [Accepted: 05/18/2010] [Indexed: 11/24/2022]
Abstract
Fabry disease is an X-linked inherited lysosomal storage disorder caused by an inborn deficiency of the enzyme α-galactosidase A. Enzyme replacement therapy (ERT) with agalsidase alpha or beta isozymes is an effective treatment. Cross-reactivity of immunoglobulin G (IgG) antibodies with agalsidase alpha and beta has been reported, but no such reaction has been recorded for IgE antibodies. We present the case of a patient with Fabry disease who developed antiagalsidase beta IgE antibodies without cross-reactivity to agalsidase alpha. A 17-year-old boy with Fabry disease had suffered from severe atopic dermatitis since infancy, and he complained for several years of peripheral pain during the summer months and when exercising. Fabry disease was confirmed by family history and a positive enzyme test, and ERT was commenced. Following infusion of agalsidase beta (1.0 mg/kg), the patient complained of a high temperature in his hands and feet, and purulent eczema developed. The infusion dose was reduced to 0.2 mg/kg, but the hyperthermia did not change, although its duration decreased. After three infusions, eosinophilia developed (9.4%; 573 cells/μl blood) and remained unresolved after four infusions with agalsidase beta. Treatment with this enzyme was discontinued, and agalsidase alpha (0.2 mg/kg) started. This produced immediate resolution of the eosinophilia, which has been maintained during follow-up. In conclusion, this patient developed IgE antibodies against agalsidase beta, which demonstrated no cross-reactivity to agalsidase alpha. These findings emphasize the importance of analyzing IgE antibodies against both enzymes when patients exhibit severe infusion-related events.
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Affiliation(s)
- Akemi Tanaka
- Department of Pediatrics, Osaka City University, Graduate School of Medicine, Osaka, Japan.
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Guest JF, Jenssen T, Houge G, Aaseboe W, Tøndel C, Svarstad E. Modelling the resource implications of managing adults with Fabry disease in Norway favours home infusion. Eur J Clin Invest 2010; 40:1104-12. [PMID: 21070219 DOI: 10.1111/j.1365-2362.2010.02363.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND The aim of this study was to estimate the resource implications and budget impact of managing adults with Fabry disease in Norway, from the perspective of the publicly funded healthcare system. METHODS A decision model was constructed using published clinical outcomes and clinician-derived resource utilization estimates. The model was used to estimate the annual healthcare cost of managing a cohort of 64 adult Fabry patients in an average year. RESULTS The expected annual cost of managing 60 existing Fabry patients and four new patients in Norway each year was estimated to be NOK 55·8 million (€6·7 million). In an average year, patients receiving enzyme replacement therapy (ERT) with agalsidase alfa (Replagal(®)) at 0·2 mg kg⁻¹ or agalsidase beta (Fabrazyme(®)) at 1·0 mg kg⁻¹ are collectively expected to make 586 attendances to their family practitioner's office for their infusions, which equates to 128 eight-hour days associated with ERT. Encouraging more patients to undergo home-based infusions has substantial potential to free-up community-based resources. In comparison, the community-related benefit that can be obtained by switching from agalsidase beta (1·0 mg kg⁻¹) to agalsidase alpha (0·2 mg kg⁻¹) is marginal, and dependent on the two doses being clinically equivalent. CONCLUSION Maximizing the proportion of adults with Fabry disease undergoing home-based infusions has the potential to release community-based resources for alternative use by non-Fabry patients, thereby improving the efficiency of the publicly funded healthcare system in Norway.
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Affiliation(s)
- Julian F Guest
- Catalyst Health Economics Consultants, Northwood, Middlesex, UK.
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Abstract
Fabry disease (FD) is a progressive, X-linked inherited disorder of glycosphingolipid metabolism due to deficient or absent lysosomal α-galactosidase A activity. FD is pan-ethnic and the reported annual incidence of 1 in 100,000 may underestimate the true prevalence of the disease. Classically affected hemizygous males, with no residual α-galactosidase A activity may display all the characteristic neurological (pain), cutaneous (angiokeratoma), renal (proteinuria, kidney failure), cardiovascular (cardiomyopathy, arrhythmia), cochleo-vestibular and cerebrovascular (transient ischemic attacks, strokes) signs of the disease while heterozygous females have symptoms ranging from very mild to severe. Deficient activity of lysosomal α-galactosidase A results in progressive accumulation of globotriaosylceramide within lysosomes, believed to trigger a cascade of cellular events. Demonstration of marked α-galactosidase A deficiency is the definitive method for the diagnosis of hemizygous males. Enzyme analysis may occasionnally help to detect heterozygotes but is often inconclusive due to random X-chromosomal inactivation so that molecular testing (genotyping) of females is mandatory. In childhood, other possible causes of pain such as rheumatoid arthritis and 'growing pains' must be ruled out. In adulthood, multiple sclerosis is sometimes considered. Prenatal diagnosis, available by determination of enzyme activity or DNA testing in chorionic villi or cultured amniotic cells is, for ethical reasons, only considered in male fetuses. Pre-implantation diagnosis is possible. The existence of atypical variants and the availability of a specific therapy singularly complicate genetic counseling. A disease-specific therapeutic option - enzyme replacement therapy using recombinant human α-galactosidase A - has been recently introduced and its long term outcome is currently still being investigated. Conventional management consists of pain relief with analgesic drugs, nephroprotection (angiotensin converting enzyme inhibitors and angiotensin receptors blockers) and antiarrhythmic agents, whereas dialysis or renal transplantation are available for patients experiencing end-stage renal failure. With age, progressive damage to vital organ systems develops and at some point, organs may start to fail in functioning. End-stage renal disease and life-threatening cardiovascular or cerebrovascular complications limit life-expectancy of untreated males and females with reductions of 20 and 10 years, respectively, as compared to the general population. While there is increasing evidence that long-term enzyme therapy can halt disease progression, the importance of adjunctive therapies should be emphasized and the possibility of developing an oral therapy drives research forward into active site specific chaperones.
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Affiliation(s)
- Dominique P Germain
- University of Versailles - St Quentin en Yvelines, Faculté de Médecine Paris - Ile de France Ouest (PIFO), 78035 Versailles, France.
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Mehta A, Beck M, Eyskens F, Feliciani C, Kantola I, Ramaswami U, Rolfs A, Rivera A, Waldek S, Germain DP. Fabry disease: a review of current management strategies. QJM 2010; 103:641-59. [PMID: 20660166 DOI: 10.1093/qjmed/hcq117] [Citation(s) in RCA: 118] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Fabry disease is an X-linked inherited condition due to the absence or reduction of alpha-galactosidase activity in lysosomes, that results in accumulation of globotriaosylceramide (Gb3) and related neutral glycosphingolipids. Manifestations of Fabry disease include serious and progressive impairment of renal and cardiac function. In addition, patients experience pain, gastrointestinal disturbance, transient ischaemic attacks and strokes. Additional effects on the skin, eyes, ears, lungs and bones are often seen. The first symptoms of classic Fabry disease usually appear in childhood. Despite being X-linked, females can suffer the same severity of symptoms as males, and life expectancy is reduced in both females and males. Enzyme replacement therapy (ERT) can stabilize the progression of the disease. The rarity of the classic form of Fabry disease, however, means that there is a need to improve the knowledge and understanding that the majority of physicians have concerning Fabry disease, in order to avoid misdiagnosis and/or delayed diagnosis. This review aims to raise awareness of the signs and symptoms of Fabry disease; to provide a general diagnostic algorithm and to give an overview of the effects of ERT and concomitant treatments. We highlight a need to develop comprehensive international guidelines to optimize ERT and adjunctive therapy in patients with Fabry disease, including females and children.
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Affiliation(s)
- A Mehta
- Lysosomal Storage Disorders Unit, Department of Academic Haematology, Royal Free and University College Medical School, Rowland Hill Street, London NW3 2PF, UK.
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Tomasic IB, Metcalf MC, Guce AI, Clark NE, Garman SC. Interconversion of the specificities of human lysosomal enzymes associated with Fabry and Schindler diseases. J Biol Chem 2010; 285:21560-6. [PMID: 20444686 PMCID: PMC2898384 DOI: 10.1074/jbc.m110.118588] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2010] [Revised: 04/23/2010] [Indexed: 11/06/2022] Open
Abstract
The human lysosomal enzymes alpha-galactosidase (alpha-GAL, EC 3.2.1.22) and alpha-N-acetylgalactosaminidase (alpha-NAGAL, EC 3.2.1.49) share 46% amino acid sequence identity and have similar folds. The active sites of the two enzymes share 11 of 13 amino acids, differing only where they interact with the 2-position of the substrates. Using a rational protein engineering approach, we interconverted the enzymatic specificity of alpha- GAL and alpha-NAGAL. The engineered alpha-GAL (which we call alpha-GAL(SA)) retains the antigenicity of alpha-GAL but has acquired the enzymatic specificity of alpha-NAGAL. Conversely, the engineered alpha-NAGAL (which we call alpha-NAGAL(EL)) retains the antigenicity of alpha-NAGAL but has acquired the enzymatic specificity of the alpha-GAL enzyme. Comparison of the crystal structures of the designed enzyme alpha-GAL(SA) to the wild-type enzymes shows that active sites of alpha-GAL(SA) and alpha-NAGAL superimpose well, indicating success of the rational design. The designed enzymes might be useful as non-immunogenic alternatives in enzyme replacement therapy for treatment of lysosomal storage disorders such as Fabry disease.
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Affiliation(s)
- Ivan B. Tomasic
- From the Departments of Biochemistry & Molecular Biology and
| | | | - Abigail I. Guce
- Chemistry, University of Massachusetts, Amherst, Massachusetts 01003
| | | | - Scott C. Garman
- From the Departments of Biochemistry & Molecular Biology and
- Chemistry, University of Massachusetts, Amherst, Massachusetts 01003
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Tesmoingt C, Lidove O, Reberga A, Thetis M, Ackaert C, Nicaise P, Arnaud P, Papo T. Enzyme therapy in Fabry disease: severe adverse events associated with anti-agalsidase cross-reactive IgG antibodies. Br J Clin Pharmacol 2010; 68:765-9. [PMID: 19917001 DOI: 10.1111/j.1365-2125.2009.03501.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
AIMS To report a severe adverse event related to enzyme replacement therapy with agalsidase in an hemizygous male patient treated for Fabry disease. METHODS Retrospective analysis of clinical, radiological and biochemical data in a patient who suffered adverse events related to both agalsidase alfa and agalsidase beta treatments. RESULTS A hemizygous male patient was first treated for Fabry disease with agalsidase alfa. After more than 1 year of therapy, infusion-related symptoms necessitated systemic steroids and antihistaminic therapy. Decline in kidney function prompted a switch for agalsidase beta. Anaphylactoid shock occurred after the second infusion. No serum IgE antibodies were disclosed. Skin-test reactivity to agalsidase beta was negative. Following a published rechallenge infusion protocol, agalsidase beta was reintroduced, leading to a second anaphylactoid shock episode. Enzyme replacement therapy was stopped and the patient was treated with symptomatic therapy only. This case was referred to the pharmacovigilance department. CONCLUSION The negativity of immunological tests (specific anti-agalsidase IgE antibodies and skin tests) does not rule out the risk of repeated anaphylactoid shock following agalsidase infusion.
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Affiliation(s)
- Chloe Tesmoingt
- Department of Clinical Pharmacy, Bichat-Claude Bernard University Hospital (AP-HP), Paris, France
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Schloendorn J, Webb T, Kemmish K, Hamalainen M, Jackemeyer D, Jiang L, Mathieu J, Rebo J, Sankman J, Sherman L, Tontson L, Qureshi A, Alvarez P, Rittmann B. Medical Bioremediation: A Concept Moving Toward Reality. Rejuvenation Res 2009; 12:411-9. [DOI: 10.1089/rej.2009.0917] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- John Schloendorn
- Biodesign Institute at Arizona State University, Tempe, Arizona
- SENS Foundation Research Center, Sunnyvale, California
| | - Tim Webb
- SENS Foundation Research Center, Sunnyvale, California
| | | | | | | | - Lijing Jiang
- Biodesign Institute at Arizona State University, Tempe, Arizona
| | - Jacques Mathieu
- Department of Civil and Environmental Engineering, Rice University, Houston, Texas
| | - Justin Rebo
- SENS Foundation Research Center, Sunnyvale, California
- Department of Microbiology, St. George's University School of Medicine, Grenada, Wisconsin
| | | | - Lindsey Sherman
- Biodesign Institute at Arizona State University, Tempe, Arizona
| | - Lauri Tontson
- Biodesign Institute at Arizona State University, Tempe, Arizona
| | - Ateef Qureshi
- Department of Microbiology, St. George's University School of Medicine, Grenada, Wisconsin
| | - Pedro Alvarez
- Department of Civil and Environmental Engineering, Rice University, Houston, Texas
| | - Bruce Rittmann
- Biodesign Institute at Arizona State University, Tempe, Arizona
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Tajima Y, Kawashima I, Tsukimura T, Sugawara K, Kuroda M, Suzuki T, Togawa T, Chiba Y, Jigami Y, Ohno K, Fukushige T, Kanekura T, Itoh K, Ohashi T, Sakuraba H. Use of a modified alpha-N-acetylgalactosaminidase in the development of enzyme replacement therapy for Fabry disease. Am J Hum Genet 2009; 85:569-80. [PMID: 19853240 DOI: 10.1016/j.ajhg.2009.09.016] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2009] [Revised: 09/17/2009] [Accepted: 09/24/2009] [Indexed: 11/16/2022] Open
Abstract
A modified alpha-N-acetylgalactosaminidase (NAGA) with alpha-galactosidase A (GLA)-like substrate specificity was designed on the basis of structural studies and was produced in Chinese hamster ovary cells. The enzyme acquired the ability to catalyze the degradation of 4-methylumbelliferyl-alpha-D-galactopyranoside. It retained the original NAGA's stability in plasma and N-glycans containing many mannose 6-phosphate (M6P) residues, which are advantageous for uptake by cells via M6P receptors. There was no immunological cross-reactivity between the modified NAGA and GLA, and the modified NAGA did not react to serum from a patient with Fabry disease recurrently treated with a recombinant GLA. The enzyme cleaved globotriaosylceramide (Gb3) accumulated in cultured fibroblasts from a patient with Fabry disease. Furthermore, like recombinant GLA proteins presently used for enzyme replacement therapy (ERT) for Fabry disease, the enzyme intravenously injected into Fabry model mice prevented Gb3 storage in the liver, kidneys, and heart and improved the pathological changes in these organs. Because this modified NAGA is hardly expected to cause an allergic reaction in Fabry disease patients, it is highly promising as a new and safe enzyme for ERT for Fabry disease.
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Affiliation(s)
- Youichi Tajima
- Department of Clinical Genetics, Meiji Pharmaceutical University, Tokyo 204-8588, Japan
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Fervenza FC, Torra R, Warnock DG. Safety and efficacy of enzyme replacement therapy in the nephropathy of Fabry disease. Biologics 2008; 2:823-43. [PMID: 19707461 PMCID: PMC2727881 DOI: 10.2147/btt.s3770] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Kidney involvement with progressive loss of kidney function (Fabry nephropathy) is an important complication of Fabry disease, an X-linked lysosomal storage disorder arising from deficiency of alpha-galactosidase activity. Clinical trials have shown that enzyme replacement therapy (ERT) with recombinant human alpha-galactosidase clears globotriaosylceramide from kidney cells, and can stabilize kidney function in patients with mild to moderate Fabry nephropathy. Recent trials show that patients with more advanced Fabry nephropathy and overt proteinuria do not respond as well to ERT alone, but can benefit from anti-proteinuric therapy given in conjunction with ERT. This review focuses on the use of enzyme replacement therapy with agalsidase-alfa and agalsidase-beta in adults with Fabry nephropathy. The current results are reviewed and evaluated. The issues of dosing of enzyme replacement therapy, the use of adjunctive agents to control urinary protein excretion, and the individual factors that affect disease severity are reviewed.
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Affiliation(s)
- Fernando C Fervenza
- Division of Nephrology and Hypertension, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Roser Torra
- Department of Nephrology, Fundació Puigvert, Barcelona, Spain
| | - David G Warnock
- Division of Nephrology, University of Alabama at Birmingham, Birmingham, AL, USA
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Mehta A, Beck M, Kampmann C, Frustaci A, Germain DP, Pastores GM, Sunder-Plassmann G. Enzyme replacement therapy in Fabry disease: comparison of agalsidase alfa and agalsidase beta. Mol Genet Metab 2008; 95:114-5. [PMID: 18701330 DOI: 10.1016/j.ymgme.2008.07.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2008] [Accepted: 07/02/2008] [Indexed: 02/05/2023]
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